Perovskite solar cells break efficiency record at 29.9%

24 Nov 2023 CW Team

Perovskite solar cells have long held promise due to their low cost, high efficiency, and ease of fabrication. However, their widespread adoption has been hampered by electrical and optical losses that limit their performance. To address this challenge, the research team developed a new method for fabricating perovskite solar cells that overcomes these limitations.

The key innovation ??????????? en el apilamiento mec?nico de la celda perovskita superior y la celda CIGS inferior, creando una estructura ?pticamente acoplada pero el?ctricamente independiente. Esta configuraci?n elimina la interacci?n entre la capa perovskita y las capas reactivas de la celda inferior, lo que permite una mayor flexibilidad de dise?o.

Adem?s, el equipo introdujo nuevas t?cnicas el?ctricas y ?pticas, utilizando "yoduro de dimetilamonio" y ajustando el espectro de interferencia ?ptica. Estas t?cnicas permitieron alcanzar una eficiencia r?cord de 20.2% para una celda perovskita semitransparente y una transmitancia cercana al infrarrojo promedio de 81.5%. Al combinarla con una celda inferior de CIS, la eficiencia en t?ndem alcanz? un notable 29.9%.

La separaci?n de las dos celdas durante el proceso de fabricaci?n simplifica la producci?n, reduce los costos de capital y acelera la entrada al mercado, facilitando as? la comercializaci?n. Un estudio de viabilidad comercial demostr? que el t?ndem de pel?cula fina de perovskita/CIGS 4T puede alcanzar un escenario competitivo en t?rminos de costos a pesar de su mayor costo de fabricaci?n debido a su alto potencial de rendimiento energ?tico.

Este avance tecnol?gico abre nuevas oportunidades para diversificar las celdas en t?ndem basadas en pel?culas delgadas de perovskita o CIS, allanando el camino para una nueva generaci?n de paneles solares m?s eficientes, econ?micos y vers?tiles.

A team of researchers from the National University of Singapore, Empa Materials Science and Technology, and the Helmholtz Institute Erlangen-N?rnberg for Renewable Energy has made a significant breakthrough in solar cell technology by achieving a record efficiency of 29.9% for a semi-transparent perovskite cell. This achievement paves the way for wider commercialization of perovskite solar cells, which have the potential to revolutionize the solar industry. Perovskite solar cells have long held promise due to their low cost, high efficiency, and ease of fabrication. However, their widespread adoption has been hampered by electrical and optical losses that limit their performance. To address this challenge, the research team developed a new method for fabricating perovskite solar cells that overcomes these limitations. The key innovation ??????????? en el apilamiento mec?nico de la celda perovskita superior y la celda CIGS inferior, creando una estructura ?pticamente acoplada pero el?ctricamente independiente. Esta configuraci?n elimina la interacci?n entre la capa perovskita y las capas reactivas de la celda inferior, lo que permite una mayor flexibilidad de dise?o. Adem?s, el equipo introdujo nuevas t?cnicas el?ctricas y ?pticas, utilizando yoduro de dimetilamonio y ajustando el espectro de interferencia ?ptica. Estas t?cnicas permitieron alcanzar una eficiencia r?cord de 20.2% para una celda perovskita semitransparente y una transmitancia cercana al infrarrojo promedio de 81.5%. Al combinarla con una celda inferior de CIS, la eficiencia en t?ndem alcanz? un notable 29.9%. La separaci?n de las dos celdas durante el proceso de fabricaci?n simplifica la producci?n, reduce los costos de capital y acelera la entrada al mercado, facilitando as? la comercializaci?n. Un estudio de viabilidad comercial demostr? que el t?ndem de pel?cula fina de perovskita/CIGS 4T puede alcanzar un escenario competitivo en t?rminos de costos a pesar de su mayor costo de fabricaci?n debido a su alto potencial de rendimiento energ?tico. Este avance tecnol?gico abre nuevas oportunidades para diversificar las celdas en t?ndem basadas en pel?culas delgadas de perovskita o CIS, allanando el camino para una nueva generaci?n de paneles solares m?s eficientes, econ?micos y vers?tiles.

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Building Material

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Ambuja Cements Drags JSW Cement to Court Over ‘Kawach’ Brand

Ambuja Cements, part of the Adani Group, has filed a trademark infringement case against JSW Cement in the Delhi High Court, alleging that its rival copied the ‘Kawach’ brand with its new product ‘Jal Kavach’.Justice Manmeet Pritam Singh Arora issued summons to JSW Cement and its subsidiary, JSW IP Holdings Pvt Ltd, while referring the matter to mediation. Hearings are scheduled to resume on October 15 if no settlement is reached.Ambuja, which registered the ‘Kawach’ trademark in 2019, argues that the term ‘Kavach’—meaning shield—is the distinctive feature of its branding. ..

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Technology

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Bentley Systems Named Innovation Partner of the Year 2025 by Afcons

Bentley Systems, the infrastructure engineering software company, has been recognised by Afcons Infrastructure Limited as its Innovation Partner of the Year 2025 at the Innovation Partners 2025 Felicitation Ceremony in Mumbai. The award acknowledges Bentley’s contribution to Afcons’ engineering digitalisation journey through an enterprise agreement providing access to over 250 Bentley engineering software tools. This adoption has enabled Afcons to accelerate project delivery, standardise digital workflows, and strengthen innovation across its infrastructure portfolio. Among key i..

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Infrastructure Urban

18 Sep 2025

SBI Sells 13.18% Stake in Yes Bank to Japan’s SMBC

State Bank of India (SBI) has completed the sale of a 13.18 per cent stake in Yes Bank to Japan’s Sumitomo Mitsui Banking Corporation (SMBC) for over Rs 8,889 crore. The divestment is part of a Rs 13,482 crore deal finalised in May with SMBC and seven private banks.Following the transaction, SBI’s shareholding in Yes Bank stands at 10.8 per cent. The deal, involving 4,134.4 million shares at Rs 21.50 each, is the largest cross-border transaction in the Indian banking sector.SBI Chairman C S Setty described the 2020 RBI-led rescue of Yes Bank as a pioneering public-private partnership, addi..